WO1997037697A1 - Intravascular blood pump - Google Patents

Intravascular blood pump Download PDF

Info

Publication number
WO1997037697A1
WO1997037697A1 PCT/EP1997/001660 EP9701660W WO9737697A1 WO 1997037697 A1 WO1997037697 A1 WO 1997037697A1 EP 9701660 W EP9701660 W EP 9701660W WO 9737697 A1 WO9737697 A1 WO 9737697A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
intravascular blood
blood pump
20a
characterized
Prior art date
Application number
PCT/EP1997/001660
Other languages
German (de)
French (fr)
Inventor
Günter RAU
Helmut Reul
Thorsten Siess
Original Assignee
Rau Guenter
Helmut Reul
Thorsten Siess
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19613565A priority Critical patent/DE19613565C1/en
Priority to DE19613565.6 priority
Application filed by Rau Guenter, Helmut Reul, Thorsten Siess filed Critical Rau Guenter
Publication of WO1997037697A1 publication Critical patent/WO1997037697A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • A61M1/1012Constructional features thereof
    • A61M1/1018Constructional features thereof with occluders preventing backflow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/12Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body
    • A61M1/122Heart assist devices, i.e. for assisting an ailing heart, using additional pumping means in the blood circuit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/12Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body
    • A61M1/125Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body intravascular, i.e. introduced or implanted in an existing blood vessel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes

Abstract

The intravascular blood pump proposed has a drive unit (11) and, rigidly connected to it, a pump unit (12), the blood pump being connected to a catheter (13) enabling it to be inserted into a blood vessel (10). The tubular housing (15) of the pump unit (12) is fitted with a blocking device (20) which separates the suction side (21) from the delivery side and thus prevents the pump being bypassed.

Description

Intravascular blood pump

The invention is based on an intravascular blood pump having a motor-incorporated drive portion and a pump portion rigidly connected therewith, wherein the pump portion comprises a tubular housing and a therein rotatably mounted impeller. Such a pump is known from the magazine "The International Journal of Artificial Organs", Vol. 18, No. 5 (1995), page 273-285. It is through puncture of a blood vessel in the vascular system of the body einge¬ and to the heart or to another location, to be pumped to the blood, advanced.

over from US 4,969,865, EP 0157871 Bl and EP 0397668 Bl are other intravascular blood pumps are known, but in which only the pump portion in the bloodstream is advanced, while the drive part extracorporeal arranged poral and with the pump part a flexible shaft is connected.

From EP 0157859 Bl, a blood pump is known, in which the drive part and the pumping part are structurally combined. This pump is implantable, but not about an intravascular blood pump which can be minimally invasive introduced into the body.

Intravascular blood pumps must have an outside diameter that is sufficiently small so as not to clog a blood vessel. The largest permitted Außendurch¬ diameter is on the order of about 7 mm. When the driving part is disposed in the vicinity of the pump part, because of structural restrictions, the power of the drive member is limited. It is therefore important to fully utilize the pump performance and minimize power and flow losses.

According to DE 37 05 637 Al, it is possible to lock by means ring¬ shaped balloons flow paths along a catheter.

The invention has for its object to provide a sale intrava¬ blood pump which can be used with high efficiency in the interior of a blood vessel, in particular also outside the aorta.

This object is solved by the subject of claim 1.

In this intravascular blood pump, the driving part is ver¬ agrees with the pump part to form a structural unit. This means that both parts are jointly introduced into the blood vessel. The blood pump is placed in front of the respective organ in an organ supplying vascular der¬ art that the pump part with a central opening in the flow direction is superimposed Ansaug¬ superiors to the drive part. At the pump portion, a locking device is provided to prevent a flow short circuit along the outside of the pump housing. In this way it is avoided that fluid / blood from the output side of the pump to the pump housing by passes to the inlet side. The entire aspirated blood is conveyed past in the direction of flow of the driving part. The Ver¬ application of the claimed pump is thus not limited to an introduction into the aorta where the Aorten¬ flap can act as a shut-off device.

The risk that the pump from sucking on the vessel is minimized due to the centrally located intake opening in the vessel. Since the entire blood stream flows along the drive member, it is ensured that the pressure built up by the pump pressure itself then holds open the elastic vessel when the vessel diameter almost equal to that of the pump part and the driving part. The outgoing flow between the motor and the vessel further ensures the removal of the heat generated in the drive, without causing temperatures to blood damage due to excessive Oberflächentem¬ (41 ° C). Suitably, a protruding from the circumference of the drive part Zen¬ is provided a recording device, on the one hand, keeps open the flow channel and on the other hand centered Ab¬ the driving part in the blood vessel. Further, the apparatus preventing Zentrier¬ hen a Dre¬ and fäß axial migration of the entire pump in Blutge¬ together with the locking device.

In the following be explained in more detail with reference to the Zeichnun¬ gen embodiments of the invention. Show it :

Fig. 1 is a schematic representation of the intravascular blood pump inside a blood vessel and

Fig. 2 shows a second embodiment of the blood pump in the interior of a blood vessel. In Fig. 1, the blood pump in the interior of a blood vessel 10, for example an artery disposed. The blood pump comprises a drive part 11 and a pump part 12 which are fixedly connected to each other, but have an axial spacing. The drive portion 11 includes a drive motor An¬. It is connected at its rear end with a catheter 13, through which the lead Versorgungs¬ and control cables for the motor fourteenth

The pump part 12 comprises a tubular pump housing 15 which is arranged coaxially with the rotor and at its one end a suction port 16 is formed. In the pump housing 15 an impeller 17 is rotatable, which has a widening in the flow direction of the hub 18 and radially projecting wings thereof nineteenth The hub 18 is seated either on the output shaft of the motor 14 or is freely rotatable and coupled with the output shaft of the motor via a magnetic coupling.

The motor 14 and the pump housing 15 have approximately glei chen diameter. This diameter is in the range of 5 to 8 mm, so that the blood pump will not clog the blood vessel 10th The pump housing 15 leaving blood flow then flows to the outside of the motor 14 along. On the outside of the pump housing 15 is a auf¬ weitbare locking device 20 is fixed which consists of a flexible sealing screen which is formed generally frustoconical shape and is attached at its smaller end to the pump housing, while open the grö¬ ​​ßere end and against the can lay Blut¬ wall of the vessel 10 or fold up and rest against the pump housing 15 outside. Of the locking device 20 constituting flexible sealing shield acts in the manner of a check valve. If the pressure in the wealthy Be¬ 21 before the suction port 16 is lower than the pressure at the pump outlet, the sealing screen mounted on and closes the annular space between the pump housing and the vessel wall. This prevents that blood flows zurück¬ from the outlet 22 of the pump to the inlet side 21st The entire blood stream is thus forced to flow along on the engine 14th

For stabilization of the central position of the drive input member 11 in the interior of the blood vessel 10 of the drive input part 11 is provided with a protruding from its circumference Zen¬ recording device 23 is provided in the form of projecting, is spring-like to au¬ SEN tapered ribs.

In the embodiment of FIG. 2 is attached to the Pum¬ pen housing 15, a fixed forwardly projecting suction tube 25 which vor¬ is centered in the blood vessel in, and having at its end openings for the blood entry. The suction hose 25 is sealingly connected to the cylindrical pump housing 15 and extends this forward. The locking device 20a is shown in FIG. 2 by an annular balloon that is attached to the pump housing 15 or on the suction hose 25th This balloon is connected to a lumen of the catheter 13 so that it wer¬ extracorporeally inflated with gas or liquid the can. The balloon causes a prevention of back flow of blood and a centering Pumpen¬ part 12 and suction hose 25 in the blood vessel.

Claims

PATENT CLAIMS
1. intravascular blood pump having a a motor (14) containing the drive member (11) and a fixedly connected thereto pump part (12), wherein the Pum¬ penteil (12) comprising a tubular pump housing (15) and a therein rotatably mounted impeller (17) and having a flow path outside of the pump housing (15) obstructing the expandable locking device (20; 20a).
2. intravascular blood pump according to claim 1, characterized in that the drive part (11) of the periphery of the motor (14) projecting Zentriervor¬ direction (23).
3. intravascular blood pump according to claim 1 or 2, da¬ by in that the locking device (20, -20A) to the pump housing (15) is mounted.
ushers 4. intravascular blood pump according to any one of claims 1 to 3, characterized in that the housing in the Pumpen¬ (15), a suction hose (25) and the locking device (20a) of the pump housing
(15) and / or the suction hose (25) surrounds.
5. intravascular blood pump according to any one of claims 1 to 4, characterized in that the direction is Sperrvor¬ (20a) be¬ of an annular balloon.
6. intravascular blood pump according to any one of claims 1 to 4, characterized in that the Sperrvor- device (20) consists of a flap in the manner of a non-return-acting flexible sealing screen.
Intravascular blood pump according to any one of claims 1 to 6, characterized in that the Sperrvor¬ direction (20; 20a) exert a fixing function for the Pum¬ penteil (12) in radial and axial direction and in the circumferential direction.
PCT/EP1997/001660 1996-04-04 1997-04-02 Intravascular blood pump WO1997037697A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19613565A DE19613565C1 (en) 1996-04-04 1996-04-04 Intravasal blood pump with drive motor
DE19613565.6 1996-04-04

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53581797A JP2001515375A (en) 1996-04-04 1997-04-02 Intravascular blood pump
EP97919314A EP0929327A1 (en) 1996-04-04 1997-04-02 Intravascular blood pump

Publications (1)

Publication Number Publication Date
WO1997037697A1 true WO1997037697A1 (en) 1997-10-16

Family

ID=7790514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/001660 WO1997037697A1 (en) 1996-04-04 1997-04-02 Intravascular blood pump

Country Status (5)

Country Link
EP (1) EP0929327A1 (en)
JP (1) JP2001515375A (en)
CA (1) CA2250993A1 (en)
DE (1) DE19613565C1 (en)
WO (1) WO1997037697A1 (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821307C1 (en) * 1998-05-13 1999-10-21 Impella Cardiotech Gmbh Intra-cardiac blood pump
EP2263732A3 (en) * 2003-11-12 2011-10-26 Thoratec Corporation Cannulae having a redirecting tip
US8177703B2 (en) 2005-06-06 2012-05-15 The Cleveland Clinic Foundation Blood pump
US8992163B2 (en) 2004-09-17 2015-03-31 Thoratec Corporation Expandable impeller pump
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
US9308302B2 (en) 2013-03-15 2016-04-12 Thoratec Corporation Catheter pump assembly including a stator
US9327067B2 (en) 2012-05-14 2016-05-03 Thoratec Corporation Impeller for catheter pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
US9364593B2 (en) 2004-09-17 2016-06-14 The Penn State Research Foundation Heart assist device with expandable impeller pump
US9381288B2 (en) 2013-03-13 2016-07-05 Thoratec Corporation Fluid handling system
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US9675740B2 (en) 2012-05-14 2017-06-13 Tc1 Llc Impeller for catheter pump
US9675739B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9675738B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Attachment mechanisms for motor of catheter pump
US9770543B2 (en) 2015-01-22 2017-09-26 Tc1 Llc Reduced rotational mass motor assembly for catheter pump
US9827356B2 (en) 2014-04-15 2017-11-28 Tc1 Llc Catheter pump with access ports
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US9907890B2 (en) 2015-04-16 2018-03-06 Tc1 Llc Catheter pump with positioning brace
US10029037B2 (en) 2014-04-15 2018-07-24 Tc1 Llc Sensors for catheter pumps
US10105475B2 (en) 2014-04-15 2018-10-23 Tc1 Llc Catheter pump introducer systems and methods
US10238783B2 (en) 1999-09-03 2019-03-26 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US10357598B2 (en) 2018-10-22 2019-07-23 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904975A1 (en) * 1999-02-06 2000-09-14 Impella Cardiotech Ag A device for intravascular cardiac valve surgery
DE10040403A1 (en) * 2000-08-18 2002-02-28 Impella Cardiotech Ag Intracardiac blood pump
DE102004054714A1 (en) * 2004-11-12 2006-05-24 Impella Cardiosystems Gmbh Foldable intravascularly insertable blood pump
AT504990B1 (en) * 2007-02-27 2008-12-15 Miracor Medizintechnik Handels Catheter to support performance of a heart
AU2010266166B2 (en) 2009-07-01 2015-09-03 The Penn State Research Foundation Blood pump with expandable cannula
US9162017B2 (en) 2011-08-29 2015-10-20 Minnetronix, Inc. Expandable vascular pump
CA2948121A1 (en) * 2014-05-19 2015-11-26 Magenta Medical Ltd. Blood pump
EP3108909B1 (en) 2015-06-23 2018-09-26 Abiomed Europe GmbH Blood pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753221A (en) * 1986-10-22 1988-06-28 Intravascular Surgical Instruments, Inc. Blood pumping catheter and method of use
EP0364293A2 (en) * 1988-10-13 1990-04-18 Kensey Nash Corporation Blood pumping catheter
EP0445782A1 (en) * 1990-03-08 1991-09-11 Sun Medical Technology Research Corporation Auxiliary artificial heart of the embedded-in-body type
US5092844A (en) * 1990-04-10 1992-03-03 Mayo Foundation For Medical Education And Research Intracatheter perfusion pump apparatus and method
WO1994009835A1 (en) * 1992-10-30 1994-05-11 Robert Jarvik Cannula pumps for temporary cardiac support

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625712A (en) * 1983-09-28 1986-12-02 Nimbus, Inc. High-capacity intravascular blood pump utilizing percutaneous access
US4704121A (en) * 1983-09-28 1987-11-03 Nimbus, Inc. Anti-thrombogenic blood pump
DE3705637C2 (en) * 1987-02-21 1989-02-02 Bissendorf Peptide Gmbh, 3002 Wedemark, De
US4817586A (en) * 1987-11-24 1989-04-04 Nimbus Medical, Inc. Percutaneous bloom pump with mixed-flow output
US4969865A (en) * 1989-01-09 1990-11-13 American Biomed, Inc. Helifoil pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753221A (en) * 1986-10-22 1988-06-28 Intravascular Surgical Instruments, Inc. Blood pumping catheter and method of use
EP0364293A2 (en) * 1988-10-13 1990-04-18 Kensey Nash Corporation Blood pumping catheter
EP0445782A1 (en) * 1990-03-08 1991-09-11 Sun Medical Technology Research Corporation Auxiliary artificial heart of the embedded-in-body type
US5092844A (en) * 1990-04-10 1992-03-03 Mayo Foundation For Medical Education And Research Intracatheter perfusion pump apparatus and method
WO1994009835A1 (en) * 1992-10-30 1994-05-11 Robert Jarvik Cannula pumps for temporary cardiac support

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999058170A1 (en) 1998-05-13 1999-11-18 Impella Cardiotechnik Aktiengesellschaft Intracardiac blood pump
DE19821307C1 (en) * 1998-05-13 1999-10-21 Impella Cardiotech Gmbh Intra-cardiac blood pump
US10328191B2 (en) 1999-09-03 2019-06-25 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US10279095B2 (en) 1999-09-03 2019-05-07 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US10300186B2 (en) 1999-09-03 2019-05-28 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US10300185B2 (en) 1999-09-03 2019-05-28 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US10322218B2 (en) 1999-09-03 2019-06-18 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
US10238783B2 (en) 1999-09-03 2019-03-26 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods
EP2263732A3 (en) * 2003-11-12 2011-10-26 Thoratec Corporation Cannulae having a redirecting tip
US9717833B2 (en) 2004-09-17 2017-08-01 The Penn State Research Foundation Heart assist device with expandable impeller pump
US9364593B2 (en) 2004-09-17 2016-06-14 The Penn State Research Foundation Heart assist device with expandable impeller pump
US9364592B2 (en) 2004-09-17 2016-06-14 The Penn State Research Foundation Heart assist device with expandable impeller pump
US8992163B2 (en) 2004-09-17 2015-03-31 Thoratec Corporation Expandable impeller pump
US10215187B2 (en) 2004-09-17 2019-02-26 Tc1 Llc Expandable impeller pump
US8177703B2 (en) 2005-06-06 2012-05-15 The Cleveland Clinic Foundation Blood pump
US9950101B2 (en) 2005-06-06 2018-04-24 The Cleveland Clinic Foundation Blood pump
US8992407B2 (en) 2005-06-06 2015-03-31 The Cleveland Clinic Foundation Blood pump
US10149932B2 (en) 2006-03-23 2018-12-11 The Penn State Research Foundation Heart assist device with expandable impeller pump
US9962475B2 (en) 2011-01-06 2018-05-08 Tc1 Llc Percutaneous heart pump
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
US9675740B2 (en) 2012-05-14 2017-06-13 Tc1 Llc Impeller for catheter pump
US10117980B2 (en) 2012-05-14 2018-11-06 Tc1 Llc Distal bearing support
US10039872B2 (en) 2012-05-14 2018-08-07 Tc1 Llc Impeller for catheter pump
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US9327067B2 (en) 2012-05-14 2016-05-03 Thoratec Corporation Impeller for catheter pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
US10086121B2 (en) 2012-07-03 2018-10-02 Tc1 Llc Catheter pump
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US9381288B2 (en) 2013-03-13 2016-07-05 Thoratec Corporation Fluid handling system
US9308302B2 (en) 2013-03-15 2016-04-12 Thoratec Corporation Catheter pump assembly including a stator
US10105475B2 (en) 2014-04-15 2018-10-23 Tc1 Llc Catheter pump introducer systems and methods
US10029037B2 (en) 2014-04-15 2018-07-24 Tc1 Llc Sensors for catheter pumps
US9827356B2 (en) 2014-04-15 2017-11-28 Tc1 Llc Catheter pump with access ports
US9987404B2 (en) 2015-01-22 2018-06-05 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9770543B2 (en) 2015-01-22 2017-09-26 Tc1 Llc Reduced rotational mass motor assembly for catheter pump
US9675738B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Attachment mechanisms for motor of catheter pump
US9675739B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9907890B2 (en) 2015-04-16 2018-03-06 Tc1 Llc Catheter pump with positioning brace
US10357598B2 (en) 2018-10-22 2019-07-23 Maquet Cardiovascular Llc Guidable intravascular blood pump and related methods

Also Published As

Publication number Publication date
JP2001515375A (en) 2001-09-18
CA2250993A1 (en) 1997-10-16
EP0929327A1 (en) 1999-07-21
DE19613565C1 (en) 1997-07-24

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